Question
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Are catalyst additives available to boost bottoms processing in the FCC?
Nov-2021
Answers
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Melissa Clough Mastry, BASF, melissa.mastry@basf.com
In terms of FCC additives, there are two methods available. The first is an additive that can rapidly increase conversion. For this, the Converter additive is an effective way to achieve bottoms upgrading through increased conversion, pushing the bottoms material into more valuable products. The second is an additive that introduces high active matrix content. For this, the HDUltra additive is effective at rapidly changing your Z/M ratio and thus your bottoms cracking potential. For an even more effective and long lasting change in bottoms upgrading, we recommend an overall catalyst change. A catalyst change is a more permanent solution to a bottoms cracking target and allows the refiner to customise the method (activity and/or matrix, and often a mix of both) to employ, since each refinery requires a different solution to their bottoms upgrading objectives. A catalyst change allows the refinery to take into account all input variables, including feedstock characteristics and importantly the FCC unit’s downstream constraints, along with the target of bottoms upgrading.
Nov-2021
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